Generic system for the detection of statutory potato pathogens

Methods for detecting and discriminating volatile organic compounds emitted by statutory pathogens in potato tubers are reported. Analyses were performed utilising headspace solid phase microextraction gas chromatography–mass spectrometry (HS-SPME-GC–MS). Principal component analysis of the data highlights the difference in volatile profiles of infected tubers and their controls. An instrument was developed comprising an automated SPME sampler and 8-metal oxide sensor array and was demonstrated to be capable of identification of infected material.